R&D Report 1994-16 : Digital Audio Broadcasting: Comparison of coverage at Band II and Band III. I.R. Pullen, P.J. Doherty, M.C.D. Maddocks A Digital Audio Broadcasting (DAB) system capable of reliable reception in vehicles and portables has been developed by the EUREKA 147 project. This Report describes a set of experiments performed to compare the coverage area when radiating a DAB signal of equal power in Band II and Band III. It is concluded that a slightly lower level of signal variation is obtained at Band II than Band III. This suggests that a 50% to 99% location correction factor of 12 dB should be used for Band II. However, the experimental measurements of coverage area have shown that, for equal transmitter powers, the coverage at Band II was considerably less than at Band III. This result was unexpected. The most likely cause of the poor performance at Band II was a much higher level of man-made interference in that Band being generated from the high-power FM transmitter in the area. Further and more detailed experiments are recommended to investigate the levels of man-made noise at Band II and Band III.